/Engine/Plugins/Animation/ControlRigSpline/Source/ControlRigSpline/Public/ControlRigSplineTypes.h
Sets the control transforms in the spline. It will build the spline if needed, or will update the transforms if building from scratch is not necessary. The type of spline to build will depend on what is set in SplineMode.
void SetControlTransforms ( const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const FTransform > & InTransforms, const [ESplineType](API\Plugins\ControlRigSpline\ESplineType) SplineMode, const bool bInClosed, const int32 SamplesPerSegment, const float Compression, const float Stretch )